Question

5x/x4=....x7/6x= .....va rog
'/,=supra

Answer 1

5x/x4>1
(50+x)/(10x+4)>1
50+x>10x+4
9x<46
x<46/9 =5 si 1/9
Dar x=cifra, rezulta x={1,2,3,4,5}

x7/6x>1
(10x+7)/(60+x)>1
10x+7>60+x
9x>53
x>53/9 =5 si 8/9
x=cifra, rezulta x={6,7,8,9}

x9/56>1
x=cifra, rezulta x={5,6,7,8,9}